Changes between Initial Version and Version 1 of Ticket #15620, comment 3


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Timestamp:
Jul 17, 2024, 10:40:53 AM (17 months ago)
Author:
Tom Goddard

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  • Ticket #15620, comment 3

    initial v1  
    1 {{{
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    22Tom:
    33
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    88Kristen
    99
    10 -----Original Message-----
    11 From: ChimeraX <ChimeraX-bugs-admin@cgl.ucsf.edu>
    12 Sent: Wednesday, July 17, 2024 1:13 AM
    13 To: goddard@cgl.ucsf.edu; Browne, Kristen (NIH/NIAID) [C] <kristen.browne@nih.gov>
    14 Cc: Piya, Bhinnata (NIH/NIAID) [C] <bhinnata.piya@nih.gov>; pett@cgl.ucsf.edu; Cruz, Phil (NIH/NIAID) [C] <phil.cruz@nih.gov>
    15 Subject: [EXTERNAL] Re: [ChimeraX] #15620: Wrl outputs have bleeding color
    16 
    17 #15620: Wrl outputs have bleeding color
    18 ---------------------------------------+-------------------------
    19           Reporter:  kristen.browne@...  |      Owner:  Tom Goddard
    20               Type:  defect            |     Status:  assigned
    21           Priority:  normal            |  Milestone:
    22          Component:  Input/Output      |    Version:
    23         Resolution:                    |   Keywords:
    24         Blocked By:                    |   Blocking:
    25 Notify when closed:                    |   Platform:  all
    26            Project:  ChimeraX          |
    27 ---------------------------------------+-------------------------
    28 Comment (by Tom Goddard):
    29 
    30  Hi Kristen,
    31 
    32    Was some mesh decimation or editing done on the per-vertex .wrl after  being output from ChimeraX?  Because it looks as if two coincident  vertices at the midpoint of the bond between the red and yellow atoms got  combined into a single vertex.  The original two vertices would have one  red and the other yellow to give a crisp color boundary.  But if they were  merged and one of the two colors was then lost then that would explain  this artifact.  Any mesh editing would have to take account of the per-  vertex colors and not merge vertices of different colors.
    33 
    34    If no mesh editing was done and the images you attached are directly  rendered from the ChimeraX .wrl then I would want to know what VRML  renderer made the image.  It may be that that VRML render does the vertex  combining that messes up the colors.
    35 
    36    I am pretty sure ChimeraX is outputing a sharp color boundary and if you  showed the .wrl it outputs in an faithful VRML viewer it will show the  sharp boundary.
    37 
    38     Tom
    39 --
    40 Ticket URL: <https://www.rbvi.ucsf.edu/trac/ChimeraX/ticket/15620#comment:2>
    41 ChimeraX <https://www.rbvi.ucsf.edu/chimerax/>
    42 ChimeraX Issue Tracker
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    44 }}}